Spindle-bolster for spinning-machines



' the spindle.

, with which it is connected unyielding laterally,

UNITED Sim-res PATENT (lumen.

JOHN eoLnrfor LOWELL, MASSLCLIUSETTS.

SPINDLE-BQLSTER FOR SPINNING-MACHINES.

SPECIFIC-Arron forming part orneuers Patent No. 342,581, dated ma zs, 1885. Application filed August 18. 1885. Serial No. 174.6i9. (Iflo model.)

To all whom it may concern:

Be it known that 1, JOHN D.'COLBY, of Lowell, in the county of Middlesex, Massachusetts, have invented certain new and useful Improvements in SpindleBolsters for Spinning- Machines, of which the following is a'specification.

The objects of my invention are'to simplify and lessen the cost of construction of the devices in question, to more effectively lubricate the spindle, and so construct and support the spindle and bolster bearing that the former may be run at high speed withoutvibration.

My invention can best be understood by reference to the accompanying drawings,'in which I have shown a means for carrying it into effect.

Figure 1 is a vertical section -of a bobbinspindle and bolster embodying my invention. Fig. 2 is a perspective view of a bolster and supporting parts.

Referring to the drawings,Aindicates a. portion of the rail of a spindle-frame, B a spindle adapted to be rotated by the whirl G,w hicl iis attached thereto, and D the bobbin carried by I The bearing fpr the spindle is furnished by the bolster tube E, and a step to properly support the lower end of the spindle .is also provided, preferably by inserting in the lower end of the bolster Ea vertically-adjustable plug, 6. The bolster is supported by a surrounding tube, F, of greater diameter,

by a thin horizontal web, f. I prefer to connectthe \veb f with the bolster E at about the middle of the latter,

and to place ,the whirl 0, carried by a down wardly-extending sleeve, 0., in substantially the same horizontal plane as the web. It will be'seen that-by this arrangement, whilethe bolster at its upper and lower ends may be somewhat deflected from the axis of the supporting-tube F, and thus accommodate itself to; the spindle, the web f forms at the center of resistance of the bolster 'abearing which is so that; the holster as a whole does not change its position in theleast; also that the lateral strain exerted by the whirl O is directly in line with the immovable porsection of the tion of the bolster E, and therefore does not afl'ect the yielding actionof the bolster.

I prefer to construct the sup porting-tube F, bolster-Eland webf in one piece, the annular chambers G and H being formedin casting or.

I prefer to make the screw I with a chaniher, i, to receive lower end of the bolster. Be-

s'i'des thus enabling the latter to be made of greater length, and to extend down to or below the upper side of the rail A, making the device more compact, anoil-cup is provided for lubricating the lower end of thespindle. This is efi'ectedthrough a hole, 6, in the lower. end of the bolster. The oil entering the bolster by the hole 0' is carried around and up by the action of the spindle, and overflows from the upper end of the bolster E into the chamber G; thence it passes through perforations in the webf into the low again, thus efl'ecting a. constant and thorough lubrication of the spindle.

per end of thebolster, from being forced over er chamber, H, and cup '13 the top and onto the outside of the tube 1 I provide the spindle with a flange or collar, 1).

The spindle B may fit the tube E for ,the whole length of the latter, or it may be tapered more than the said tube, and fit the latter only at its upper end, thusgiving the lower end of the spindle some freedom of lateral movement on the step.

The mode of operation of been already suflieiently indicated.

\Vhat I claim is l. A supporting-tube and a bolster-tube connected by athin transverse web, substantially as set forth. 7 i 2. A'supporting-tubeand abolster-tubeeon- 'nected by a. transverse web at the middle of the bolster-tube, substantially as setforth.

3. A supportingtube and 'abol'ster-tube formed inone piece and connected by the transverse web f, substantially as set forth,

4. The combination, with the spii'idle,of a

the device has supborting-tube and bolster-tube connected by a transverse web and a whirl attached to the spindle and situated substantially in the plane f theweb, as set forth.

5; A supporting-tube and abolster-tnbe con mated by the web f, the bolster tube being prmiided with the adjustable step e igzg the longer end thereof, substantially asset fo'i th.

Asupporting-tube andabolster-tubecon- 10 neeted by the transverse web f, in combination I with the serew I, adapted-t0 engage with the 7 JOHN D. COLBY. Witnesses:

FRAnK Cee RN,

J. J. JUDKINS. 

